McLuhan: All right. You’ve just reached point D in the tetrad. What does it flip into when pushed all the way? Just fiction. Phony.

Forsdale: Do we really believe it?  What does it mean?

More Laws 

McLuhan: People cease to take it seriously. But you can play with those tetrads, they don’t belong in a rigid form. Just for example, remember high rise as a—is it sitting here?

Forsdale: High rise is here.

McLuhan: As a tetrad, I think it’s a handy one.